你要是不停地抓那个青春痘就会抓破皮的.If you keep scratching away at that spot, you'll break the skin.这孩子种痘了 吗 ?Has the baby been vaccinated?种痘是预防天花的方法Vaccination is a preventive against smallpox....
平直的脑电图表明脑部功能的丧失.A flat electroencephalogram indicates a loss of brain function.他从边上退了回来，环顾着周围平直的地平线。He backed away from the edge, looking all around at the flat horizon.奥氏体和马氏体之间的界面为较平直的界面.The interface of austenite and ...